Trace number 2085450

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Mistral 1.545UNSAT 0.200968 0.214127

DiagnosticValue
ASSIGNMENTS0
CHECKS9
NODES0

General information on the benchmark

Namecsp/graphColoring/sgb/
miles/normalized-miles1500-55.xml
MD5SUMbcfa8a7cc471ab5fac6c7c2d2ab0ee51
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.200968
Satisfiable
(Un)Satisfiability was proved
Number of variables128
Number of constraints5198
Maximum constraint arity2
Maximum domain size55
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5198
Global constraints used (with number of constraints)

Solver Data 

0.18/0.21	c mistral version 1.545
0.18/0.21	s UNSATISFIABLE
0.18/0.21	d CHECKS 9
0.18/0.21	d ASSIGNMENTS 0
0.18/0.21	d NODES 0 BACKTRACKS 0 FAILURES 0 RUNTIME 6.66784e-18 TOTALTIME 0.18 NODES/s 0 CHECKS/s 1.34976e+18

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2085450-1247381872/watcher-2085450-1247381872 -o /tmp/evaluation-result-2085450-1247381872/solver-2085450-1247381872 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2085450-1247381872.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.07 2.04 3/81 24227
/proc/meminfo: memFree=1879576/2055920 swapFree=4192812/4192956
[pid=24227] ppid=24225 vsize=18576 CPUtime=0
/proc/24227/stat : 24227 (runsolver) R 24225 24227 24075 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 25250964 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 258939088167 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/24227/statm: 4644 284 249 26 0 2626 0

[startup+0.064863 s]
/proc/loadavg: 2.00 2.07 2.04 3/81 24227
/proc/meminfo: memFree=1879576/2055920 swapFree=4192812/4192956
[pid=24227] ppid=24225 vsize=5200 CPUtime=0.04
/proc/24227/stat : 24227 (ld-linux.so.2) R 24225 24227 24075 0 -1 4194304 523 0 0 0 4 0 0 0 18 0 1 0 25250964 5324800 502 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157379482 0 0 4096 0 0 0 0 17 1 0 0
/proc/24227/statm: 1300 502 375 29 0 115 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5200

[startup+0.101869 s]
/proc/loadavg: 2.00 2.07 2.04 3/81 24227
/proc/meminfo: memFree=1879576/2055920 swapFree=4192812/4192956
[pid=24227] ppid=24225 vsize=5456 CPUtime=0.08
/proc/24227/stat : 24227 (ld-linux.so.2) R 24225 24227 24075 0 -1 4194304 584 0 0 0 8 0 0 0 18 0 1 0 25250964 5586944 563 996147200 1448431616 1448550632 4294956208 18446744073709551615 134556962 0 0 4096 0 0 0 0 17 1 0 0
/proc/24227/statm: 1364 563 375 29 0 179 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5456

Solver just ended. Dumping a history of the last processes samples

[startup+0.201902 s]
/proc/loadavg: 2.00 2.07 2.04 3/81 24227
/proc/meminfo: memFree=1879576/2055920 swapFree=4192812/4192956
[pid=24227] ppid=24225 vsize=6960 CPUtime=0.18
/proc/24227/stat : 24227 (ld-linux.so.2) R 24225 24227 24075 0 -1 4194304 960 0 0 0 18 0 0 0 18 0 1 0 25250964 7127040 939 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157379548 0 0 4096 0 0 0 0 17 1 0 0
/proc/24227/statm: 1740 939 397 29 0 555 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6960

Child status: 0
Real time (s): 0.214127
CPU time (s): 0.200968
CPU user time (s): 0.19197
CPU system time (s): 0.008998
CPU usage (%): 93.8545
Max. virtual memory (cumulated for all children) (KiB): 6960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19197
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1263
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 24
involuntary context switches= 6

runsolver used 0.005999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node45 at 2009-07-12 08:57:52
IDJOB=2085450
IDBENCH=58412
IDSOLVER=769
FILE ID=node45/2085450-1247381872
PBS_JOBID= 9507249
Free space on /tmp= 66460 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/graphColoring/sgb/miles/normalized-miles1500-55.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085450-1247381872/watcher-2085450-1247381872 -o /tmp/evaluation-result-2085450-1247381872/solver-2085450-1247381872 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2085450-1247381872.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= bcfa8a7cc471ab5fac6c7c2d2ab0ee51
RANDOM SEED=1857997313

node45.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1880056 kB
Buffers:          9312 kB
Cached:          64264 kB
SwapCached:          0 kB
Active:         106012 kB
Inactive:        20088 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1880056 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1804 kB
Writeback:           0 kB
Mapped:          72940 kB
Slab:            35020 kB
Committed_AS:   249224 kB
PageTables:       1892 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66460 MiB
End job on node45 at 2009-07-12 08:57:52